Question

PRECISO DE AJUDA PRA HOJE!!

1*) calcule e simplefique, se possivel

a) (5/3)2 - V36/81

b) 5/6 - 2/3 . 1/2 + 1/3 : 4/3

Answer 1

a) (5/3)^2+V36/81=
25/9+6/9=
31/9

b)
5/6-2/3.1/2+1/3:4/3=
5/6-2/6+1/3.3/4=
5/6-2/6+3/12=
10/12-4/12+3/12=
6/12+3/12=
9/12=
3/4